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  1. Yolk
    YolkPart of the egg
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    Wikipedia
    https://en.wikipedia.org/wiki/Yolk

    Yolk - Wikipedia

    • Among animals which produce eggs, the yolk is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo. Some types of egg contain no yolk, for example because they are laid in situations where the food supply is sufficient (such as in the body of the host of a parasitoid) or because the embryo develops in th… See more

    Avian egg yolk

    In avian eggs, the yolk usually is a hue of yellow in color. It is spherical and is suspended in the egg white (known alternatively as albumen or glair/glaire) by one or two spiral bands of tissue called the chalazae… See more

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    In fish

    All bony fish, some sharks and rays have yolk sacs at some stage of development, with all oviparous fish retaining the sac after hatching. Lamniform sharks are ovoviviparous, in that their eggs hatch in utero; in ad… See more

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    Avian egg yolk
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  1. Wikipedia
    https://en.wikipedia.org/wiki/Yolk_sac

    Yolk sac - Wikipedia

  2. Merriam Webster
    https://www.merriam-webster.com/dictionary/yolk

    Yolk Definition & Meaning - Merriam-Webster

  3. Wikipedia
    https://en.wikipedia.org/wiki/Eggs_as_f…

    Eggs as food - Wikipedia

    The yolk of the eggs have not yet fully solidified. Eggs contain multiple proteins that gel at different temperatures within the yolk and the white, and the …

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    • Wikipedia
      https://simple.wikipedia.org/wiki/Yolk

      Yolk - Simple English Wikipedia, the free encyclopedia

    • Britannica
      https://www.britannica.com/science/yolk

      Yolk | Development, Nutrition & Formation | Britannica

      yolk, the nutritive material of an egg, used as food by a developing, embryonic animal. Eggs with relatively little, uniformly distributed yolk are termed isolecithal. This condition occurs in invertebrates and in all but the lowest mammals.

    • yolk
      noun
      1. the yellow internal part of a bird's egg, which is surrounded by the white, is rich in protein and fat, and nourishes the developing embryo:
        "two yolks" · "a mass of yolk"
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    • Wiktionary
      https://en.wiktionary.org/wiki/yolk

      yolk - Wiktionary, the free dictionary

    • WikiMili
      https://wikimili.com/en/Yolk

      Yolk - WikiMili, The Best Wikipedia Reader

    • National Center for Biotechnology Information
      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7387521

      Origin and function of the yolk sac in primate embryogenesis

    • Vocabulary.com
      https://www.vocabulary.com/dictionary/yolk

      Yolk - Definition, Meaning & Synonyms | Vocabulary.com

    • People also ask
      Where does the yolk come from?
      In many species, such as all birds, and most reptiles and insects, the yolk takes the form of a special storage organ constructed in the reproductive tract of the mother. In many other animals, especially very small species such as some fish and invertebrates, the yolk material is not in a special organ, but inside the egg cell.

      Yolk - Wikipedia

      en.wikipedia.org
      What is the function of the yolk in an egg?
      Among animals which produce eggs, the yolk (/ ˈjoʊk /; also known as the vitellus) is the nutrient -bearing portion of the egg whose primary function is to supply food for the development of the embryo.

      Yolk - Wikipedia

      en.wikipedia.org
      What does yolk mean in English?
      yolk on Wikipedia. yolk (third-person singular simple present yolks, present participle yolking, simple past and past participle yolked) To produce yolk. From Middle English yolke (“the core or centre of something”), from Old English ġeolca, ġeoloca, ġioleca (“the yellow part, yolk”).

      yolk - Wiktionary, the free dictionary

      en.wiktionary.org
      What genes are found in a human yolk sac?
      In addition, mouse and human yolk sac express abundant levels of metal transporters for zinc, iron, folate and vitamins B12, C and E 12. Among the most prominent features of the human yolk sac transcriptome are genes associated with cholesterol and lipid metabolism.

      Origin and function of the yolk sac in primate embryogenesis

      ncbi.nlm.nih.gov
      What is a primate yolk sac?
      Taken together, the primate yolk sac can be considered a pivotal mediator of histotrophic nutrition during the first weeks of embryonic development. It acts as an upgraded extension of the embryonic gut, evolved to take on endocrine and liver-specific functions during organogenesis.

      Origin and function of the yolk sac in primate embryogenesis

      ncbi.nlm.nih.gov
      What does a yolk sac look like?
      At the end of the fourth week, the yolk sac presents the appearance of a small pear-shaped opening (traditionally called the umbilical vesicle), into the digestive tube by a long narrow tube, the vitelline duct.

      Yolk sac - Wikipedia

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